I think those "services" do some uid / guid lookups which ends with NOT reaching the LDAP server due to no network at this stage. I tried to put the netconfig earlier in the boot but i went into troubles like

Re: Systemd and nssswitch/LDAP problem (5min boot) - drives me crazy

Can you please update your topic title to reflect the actual problem instead of "Systemd drives me crazy"? This helps people to identify your thread as something they can assist you with, right now the title suggests it's just a generic rant about systemd.